Flushing-valve.



UNITED s'rATns PATENT OFFICE.

FLUSHING-VALVE.

Specification of Letters Patent.

Patented Apr. 26, 1910.

Application filed March 20, 1908. Serial No. 422,214.

To all whom it may concern:

Be-it known that I, ABRAM N. PASMAN,L citizen of the United States, residing atJersey City, in the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Flushing- Valves, of which the following is a specification.

My invention relates to an improvement in flushing valves, and the object thereof is the provision of a flushing valve which would serve the purpose of the ordinary flushing tank now commonly employed in connection with water closets and which may be utilized for any other purpose wherein a flow of water is required for a greater or less definite period of time.

My present invention is an improvement on the flushing valve structure shown and described in Letters Patent No. 789,561,

granted to me on the 9th day of May 1905, and in carrying out my resent invention I preferably empl0y a casing having a main cylindrical chamber, an inlet connection be low the same, -a longitudinal and a transverse discharge chamber each arranged exteriorly ofthe said cylindrical chamber, a piston slidable in the cylindrical chamber and carrying a valve by means of which the flow of the water to the said transverse chamber and to and through-the flush pipe under normal conditions is shut 01f; this valve 'being maintained on its seat against the pressure of the-water in the inlet connection by the water having access to the other side of the piston by means of a passage-way through the said valve and piston, which permits the water to flow tothesaid 0pposite side of the piston into the cylindrical chamber where the same under normal conditions is confined and therefore exerts a pressure against the piston to maintain the sameon its seat, which is made possible be cause the sectional area of the piston against which the water pressure is exerted within the cylindrical chamber is greater than that of the valve which normally shuts off the supply of water. I also employ means whereby the water under pressure within the cylindrical chamber may be released and discharged through the said longitudinal discharge chamber to the flush pipe and means whereby after the flushing of the bowl or other rece tacle has been elfected by the main flow o the water permitted to pass from the inlet connection to the flush pipe,

sure a sufiicient quantity of water remaining in the bowl of the closet or other vessel to be flushed,to which latter feature this invention particularly relates.

In the drawing, Figure 1 represents the flushing valve. Fig. 2 is an elevation of-the piston and the parts associated therewith. Fig. 3 is a section on line y, :1 Fig. 1. Fig. 4 is a section on line 00, m, Fig. 2, and Fig. 5 is an elevation of the adjusting screw taken at shown in Fig. 1. I Referring particularly to the drawing, my

rib 11, providing interiorly a chamber 12, The other end of the casing is provided'with a circular rib 13 preferably larger than the rib 11, the rib 13 providing an interior cham ber 14 similar to but larger than the chamber 12. In the casing there is also-a longitudinal rib 15 providing a chamber 16.

17 designates an inlet connection or nozzle communicating with the chamber 14: and 18 is an outlet connection or nozzle communicating with both the chamber 14 and the chamber 16, which latter connects with the chamber 12. This casing is provided with a top or cap member 19, with abottom portion 20 which passes through the chamber 12 into a recess provided therefor within the casing; the bottom portion'20 of the cap member 19 being provided with a chamber 21 inclosed by said bottom portion 20 and the cylindrical walls 22, in which latter there are spaced aparto'penings 23 providing for a communication between the chambers l2 and 21. Centrally the cap 19 is provided with a bore 24 and the bottom member 20 with a central aperture25. The cap is also so constructed as to provide a stuffingbox 0 fitted with a packing 26 represents a push stem adapted to fit within the bore 24 and provided at one .end with a suitable button or other device indicated at 27. Adjacent to the end of the push stem 26 to which the button 27 is attached, the push stem is provided with a shoulder 28 and within the bore 2 1 surrounding the portion of the push stem so reduced and extending between the shoulder 28 thereof and a shoulder 29 in the said cap member, is a spring 30 by means'of whicb right angles to the position of this screw as improved flushing Valve comprises acasing or' body member having a cylindrical por-f tion 10 provided at one end with a circular an auxiliary How of water is effected to incentral longitudinal section of my improved extends through the chamber 21 and also through the aperture 25 in the bottom member 20 and that portion of the push stern within the chamber 21 is reduced and prefer-.

ably of triangular cross section as plainly indicated at 31 in Fig. 3 the extremlty of the stem adjacent to this triangular portion 31 thereof being still further reduced and screw-threaded as indicated at 32.

Surrounding the triangular portion 31 of the push stem 26, I employ a sleeve 33 which extends through the opening or aperture 25 in the bottoin portionQQ and is preferably square in, outline as is also indicated in Fig. This sleeve 33 is provided with a. flange 34 and a valve adapted to seat against a valve seat 36 tormedby the depending lipsurrounding the aperture on the under side of the bottom member 20. I also employ a valve 37 surrounding the screw-threaded reduced end of the push stein andadapted to seat on valve seat provided in the under side of the flange 34 on the sleeve 33, and this valve 3'7 as well as the sleeve 33 and the parts associated therewith, are secured on the push stem 26 in-their relative positions by means of a nut 39 or otherwise.

Vlithin the cylindrical portion of the casing or body member, I employ a piston 10 which may be of any desired construction. Depending from the piston 40 is a tubular stern ll which exteriorly is preferably screwthreaded as indicated at Fig. 1. Centrally within the piston an adjusting screw 42 is employed, which adjusting screw is preferably slot-ted and the base of the slot being tapering as indicated at 13 for the purpose of retarding as little as possible the passage of the liquid through the tubular stem in the opposite side of the piston, and as will be apparent the quantity of water which will be permitted to pass through the tubular stem to the opposite side of the piston,-other conditions being the same,--will depend upon the height or position of the adjusting screw 42.

The under side of the piston 10 is prefer ably provided with a shoulder 45 against which a. gasket 4-6 of rubber, leather or other suitable material surroundin the tubular stem 41 is secured by means 0' a collar a8 turned down from the screw-threads of the tubularsten'i. This gasket 46 is adapted to seat on a seat 47 provided therefor by an internal flange 4 1. a

19 indicates a valve hereinafter designated as the inlet valve. This also surrounds the tubular stem 41 and bears against the lower face of the collar 48 and is adapted to seat against the valve seat 50 provided therefor by means of an annular flange 50.

Surrounding the tubular stem 11 below the inlet valve 49 Iemploy a sleeve comprising the concentric inner Wall 52 and outer wall 53 and the member 51 connecting the two walls at one of the ends thereof. The outer wall 53 is provided atits lower edge with a flange 5% and surrounding the outer wall 53 and extending between the said flange 54 and the inlet valve 49 I employ a ring 55. In suitably spaced apart positions the outer wall 53 of the said sleeve is provided with holes 56 and in similarly spaced apart positions the ring 55 is provided with a corresponding number of holes 57,,the parts being so arranged that the ring 55 may be adjusted relatively to the sleeve so that the holes 57 therein will register With the holes 56 in the outer wall 53 to any desired eXtent,-orthat there may. be no communication by way of said holes 56 and 57. The valve 49 and the said sleeve and the parts associated therewith are secured in position on the. tubular stem by means of a nut 58 which bears against the lower edge of the inner Wall 52 or otherwise. 1

In the operation of the improved flushing valve, the parts normally are in the positions indicated at Fig. 1, and moreover this construction of valve has been tested and found to operate successfully under any gi'xen pressure of water commonly used for the purposes for-Which the valve is intended. Irrespective of the water pressure in the inlet connection, it will be apparent that by means of the communication by way of the adjusting screw 42 there will be the same, water pressure Within the cylindrical portion.

10 and that because of the valve 49 and the gasket 46 being firmly seated there will be no escape of the water from the source of supply. In operating'the valve the push stem 26 is depressed and the valve 37'is first lowered thereby, thereby initially releasing the confined water within the cylinder 10 and by a further depression of the push stem 26, the sleeve 33 drops by gravity and the valve 35 carried therebyo ened; it being understood that the initia escape of the water will be by way of the passages be tween the triangular sides of the reduced portion 31 ofthe push stem, and the walls of the bore of the sleeve 33, and after the valve 35 is opened, the escape of the confined' water will be by Way of the passages between the square sides of the sleeve 33 and the walls of the opening or aperture 25 in the bottom portion 20, and water so escaping passes from the chamber 21 by way of the openings 23 to the chamber 12, thence to the longitudinal chamber 16 and to the flushing pipe connected tothe outlet nozzle 18'; the pressure having become unbalanced on the opposite sides of the piston it will be manifest that the increased pressure on the lower side will force the piston upwardly, thereby unseating both the gasket 16 and "m mber ..ha sa I ename valve 49 and permitting the water -or other liquid to flow unobstructed to the flush pi e connected to the outlet nozzle 18 and tliis condition willcontinue so long as the valve 35 iskept open by the depression of the push stem 26. U on releasing the same wi return to theposition shown 1n Fig. 1, by means of the spring to close both-the valves and 37, whereupon. whe hquidflfrom the source of so ply will -.flow through the slotted portiono the adjustin screw 42 to the space within the cylindrica portion 10 of the casing above the piston and this'will continue .untilthe piston is ket 46 and the valve 49 of the liquid due to the difiereno'e in area tween. the piston and the valve 49 Now on the return of thepiston the main fl'ow' of the water-is shut off as the lower; edge of the sleeve and ring 55 passes within the annular flange '50 and this occurs 'before-the'giasket 46. orthevalve49is seated, and in. on er tp efiect'a supplemental or'auxiliary flow of water .sufiicientto insure the bowl of tits closet-or other vessel being filled to the de'- sired extent, the water'may flow by way of the'passage between "4 dred pounds orm'ore for instance, 'suflicient robably-be forced between the 'l'11ng 55 an ,the' walls of'the flange 50 to accomplishthe d "red purpose if the holes 56 57 are entirely out'of alinement.

. I claim as myinventionz' 1. A jflushing :valve comprising a body a cyliii'drlcal portion, a

chamber at each endgthiereof, an inlet and an outletconne'ct on, and" a longitudinal pas- 50 sageway exterior of the said cylindrical or-, .1 tionand; extending between-saidcham ers and connecting the-same the said outlet connection, a piston "inathe said cylindrical *portion of the pony member, a tubular member'de endin fJfronithesaid piston, agasket 0l1 sai" tubu ar member, a device surround ing' the: 'saidl tub lar maintainithe'said. gasket in pos1tion, a seat for' thesaid gasket, an inlet valve, a seat for a v below the said device, a wall qcdnceritridwith and spaced apart from the .saidmember and'connected therewith atone end, the said wallbeing provided with series of spaced apertufes, means for securing the tubular member the push stem 26 forceddown positively seating'both the gas" against the pressire. e

the walls-52' and 53 of the sleeve and theopenings 56 and 57 in the depending member to the 'lsame, a-member surrounding the said,

said tubular dependin for varying the size 0 liquidtherethroug member having? jacylindrical portion,' a chamber at each end. .outlet connection and a tion' and. extending -'connection,' :apiston in the spending. from the said piston,

tubular stem. to maintain the saidgasket on of the 'saidcylindrical body member, an Billet valve, same, a sleeve surrounding the said tubular stem below the said eollarfa wall concen- ,sei"i'es of s aee'd' apertures,zmeans; forsecuring the sa1d i 'leeve and wall. imposition on the tubular stem and means tor varying the size of the-said,, er turesiin 'the said wallto regu therethrough. 1

.rnember having a cylindrical-f portion,

chamber at each. end thereof, an inlet and'an sageway exterior of "tion and extending and .connectingthe same portion of the body member, a tubular stem position, aseat for the said gasket in the end of the. said cylindrical portion. of the body member, same, a sleeve surrounding said tubular stem below. said collar, a "wall concentric with "but spaced apart from said sleeveand connected therewith at one end, said wall being provided with a series 015 apertures, a ring a like series of apertures whereby in coacting with the apertures in size thereof may be varied to regulate the direct passage of the liquid therethrough, and, means for maintaining the said sleeve, wall and ring 'inposition on thesaid tubu-' lar stem.

Signed by me this 10th day of I ebruary 1908." 1

. ABRAM PASMAN. Witnessesz' a ARTHUR H. SnRnaLL.

, E. ZACHARIASEN.

thereof,. a'n"inlet andyanf longitudinal l [pas-f -sagevvay exterior-of the said cylindrical orbetween said cha m rs g; and connecting the same to the said outlet] said cylindrical ortionof the body member,"a;tubular stem a gasket on' the said s tem',-.a collar surrounding the said.

6, S id-wall. h ihicpro w the late the '*direct of the liquid.

outlet connection and a longitudinal pas- :1 the said cylindrical orbetweensaid' cham r'sto the said outlet. v connection, a piston in the said cylindrical.

the said wall, the

said member and its wall in position on-rthe m mber. and means} the said apertures in the said wall torfigulate the'passage of in osition, aseat'forthe'said gasket'in thegr.

portionofthe a seat-for the" 'Itricgwith but spaced apart;-from the said tubular sleeveg andrconnected therewith at;

3,.A flushing vialveuf comprising a epending from the said pistonia gasketon 1 the said stem, acollar surround ng the sa d tubular stem to maintain the said gasketm an inlet valve, aseat for the fitting over the said wall and provided with, it 

